APPARATUS FOR LED COMMUNICATION OF VEHICLE

摘要

The present invention relates to an apparatus and a method for LED communication between vehicles. According to the present invention, the apparatus for LED communication between the vehicles is provided to transmit the traveling information of a preceding vehicle to a following vehicle by being mounted in the preceding vehicle which is traveling, the apparatus comprising: a signal generation unit which converts a traveling signal of a preceding vehicle at the present time into frame data consisting of binary bits having a serial form; a signal modulation unit which receives the binary bit, performing the pulse position modulation (PPM) thereof, and serially transmitting the modulated binary bit; and a signal control unit which controls the on or off operation of a tail light provided on the rear of the preceding vehicle according to a high or low state of the modulated binary bit. According to the apparatus and the method for LED communication between the vehicles, it is possible to reduce a communication error in a following vehicle which detects the traveling information of a preceding vehicle by photographing a tail light and to improve inter-vehicle communication efficiency by performing the PPM modulation of the traveling information of a preceding vehicle consisting of binary bits, serially transmitting the modulated binary bit, and controlling to turn on or off the tail light of the preceding vehicle in real time depending on a high or low value of the transmitted signal. [Reference numerals] (11) Taillight;(110) Signal generation unit;(120) Signal modulating unit (Binary to PPM);(121) Buffer;(122) Data transmitting unit;(130) Signal control unit;(140) Delay memory unit;(150) Comparison calculating unit;(160) Comparison determining unit;(170) Dimming controller;(180) Data frame control